00:01
So if we have after one month, there are 200 rabbits.
00:05
After two months, there are 240 rabbits.
00:08
That means our one -month growth factor is 240 over 200, which is equal to 1 .2.
00:22
So after three months, it is our population after two months times our one -month growth factor.
00:28
So we know that at three months, we should have 240 times 0 .2 times 1 .2 to 288.
00:38
So a more practical model for this population is given by the sigmoid curve.
00:43
How many rabbits will there be after 12 months? so all we have to do is look at 1 ,000 over 1 plus 5e to the minus 0 .2 times 12.
00:58
And we can plug this into our handy -dandy calculator, 1 ,000 divided by 1 plus 5e to the minus 2 .4...